4200 User Manual Edgewater Networks, Inc.
Version 3.0 33
Routing Information
The system routing table contains the static routes for hosts and networks that are
configured on the system. When the LAN and WAN settings have been fully
configured, there must be four routing lines displayed. The private subnet will be
associated with the LAN interface. A similar line will be present for the WAN
interface. A line for the loop back interface will be displayed. The final line
contains the network's default gateway must be directed to the WAN interface.
The order of the lines may vary depending on the subnet masks.
Additional lines may be displayed depending on the contents of the Route and
VoIP Subnet Routing pages. Each of the entries on these pages will cause an
additional entry in the routing table.
Link Status
The status of the Ethernet connections is displayed by Link Status. Ethernet auto
negotiation is often unreliable, especially between different vendors or old and
new networking equipment. Failure of auto negotiation is generally not a cause
for concern. However, if the negotiated rates change intermittently or the link is
reported as down or no link, the link rate may need to be set manually on the Set
Link Rate page. Intermittent data, video, and voice outages may be caused by auto
negotiation "flutter". If the link rate is set manually, ensure that the device at the
far end of the connection can communicate at the desired rate. Incompatible rates
can cause a loss of communication with the system.
Interface Information
The specific status and configuration information for the system interfaces is
displayed in the Interface Information section. The MAC address of interface eth0
may be needed to license the VoIP ALG feature if the license information
attached to the system is lost or is unreadable.
The interface statistics can point to areas of congestion in the network. If the
errors statistic is a few percent or more of the total packets sent, it may be an
indication of excessive congestion on the network interface. If the congestion is
not corrected, the quality of voice and video calls will be affected. The topology
of the network attached to the network interface with the errors should be
examined and modified to better segment and isolate network traffic.
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